DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 336

Manufacturer Part Number

DS72030W200FPV

MPU, 32BIT, SH7203, ROMLESS, 240QFP

Manufacturer

Renesas Electronics America

Program Memory Size

Digital Ic Case Style

Supply Voltage Range

1.1V To 1.3V

Operating Temperature Range

-20Â°C To +85Â°C

Rohs Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Section 9 Bus State Controller (BSC)

For access to a normal space, this LSI uses strobe signal output in consideration of the fact that

mainly static RAM will be directly connected. When using SRAM with a byte-selection pin, see

section 9.5.8, SRAM Interface with Byte Selection. Figure 9.2 shows the basic timings of normal

space access. A no-wait normal access is completed in two cycles. The BS signal is asserted for

one cycle to indicate the start of a bus cycle.

There is no access size specification when reading. The correct access start address is output in the

least significant bit of the address, but since there is no access size specification, 32 bits are always

Rev. 3.00 Sep. 28, 2009 Page 304 of 1650

REJ09B0313-0300

Basic Timing

Normal Space Interface

Figure 9.2 Normal Space Basic Access Timing (Access Wait 0)

Note: * The waveform for DACKn is when active low is specified.